Winding mechanism



Nov. 17, 1931. A. A. GRUNDY WINDING MECHANISM' Filed Aug. '7. 1929 F/GJ.

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Patented Nov. 147, 1931 PATENT OFFICE ALFRED A. GRUNDY, OF PHILADELPHIA,PENNSYLVANIA WINDTNG iviiiciiANisM Applicationled August 7, 1929. SerialNo. 384,150.

This invention relates to a. winding machine` of the type adapted toproduce wound bobbins of yarn. The winding mechanisms designed to wind-6 yarn on large bobbins have heretofore generally produced` arelatively loose winding which would readily be dislodged, by'acci-vdent, from its spool,`thereby possibly producing unwinding which wouldproduce dificultiesof handling. f 1 a It is the broad object of thepresent invention toprovide a mechanism which will produce a tightwinding of yarn upon a suitable spool so that the winding will not bereadily dislodged from the spool. j j.

Further objects relate to an automatic control whereby the diameter ofthe wound bobbin is maintained uniform and of a. piedetermined amount.More detailed objects relating to an iinproved mechanism for effectingthe above results will be apparent from the following de scription readin conjunction with the accompanying drawings, in which: Fig. 1 is avertical sectional view through the improved mechanism; and

Fig. 2 is a plan view partly in section of the mechanism. g

The frame 2 of the machine carries a bracket 3 provided with a slot asindicated in Fig. 2, through which a suitable bolt is arranged to extendso that a transverse adj ustment of the bracket is obtainable. Withinbracket 3 is ournalled a spindle 4 which is driven through suitablefriction discs 6 in the well known manner whereby variation of speed isobtainable. Spindle 4 carries a collar 8 which is arranged to Vprovide.a mounting for a suitable spool 10 which in the present instance isconical at its lower end, the cone being joined at its upper end with acylindrical portion surrounding the spindle. l i A gear 12 carried by alower end of spindle 4 meshes with a second gear 14 secured to a spindle16. A sleeve 18 is secured within a suitable bracket carried by theframe v2 and provides a` journal for spindle 16, the 5C spindle being4retained within the fixed sleeve by a `collar 20 secured to the top ofthe spindle.

Slidably mounted on a fixed sleeve 18 is acarrier 22 in which is mounteda shaft 24' carrying a worm wheel 26 extending through 65 a longitudinalslot 28 in the sleeve and meshing with a worm 30 formed on the spindle.The opposite end of shaft 24 carries a cani 82 received in an opening inan arm 34 for a thread `guiding eye 38, which arm is pivoted to thecarrier 22 as indicated at 36.

Journalled on the carrier 22 is a cup 40 having a rounded peripheryextending adjacent to the spool 10 as shown in Figs. 1 and 2, this cupbeing retained on the carrier 22 65 by means of a collar 42. A springarm 44 is carried by the cup and is provided with an end engagingthreads 46 formed on the outside of sleeve 18.

In the operation of the device, assuming the carrier 22 to besubstantially in a position shown in Fig. 1, the guiding eye 38 carryingthe yarn to be wound on the spool will be given an oscillatory movementby cam 32, which is rotated through worm 3() and worm 75 wheel 26. rliheyarn is thus wound upon the lower conical portion 10 of the spool, theguiding eye oscillating within a range of movement substantially asindicated by the dash lilies in Fig. 1. As the windings build up uponthe conical portion of the spool they contact with the periphery of cup40, rotating this cup so that the spring follower 44 will ride upwardlywithin the grooves between the threads 46, thus raising the carrier andchanging the range of the oscillatory movement of guiding eye 38. Asthis occurs, the windings are laid upon the conical surface of theprevious windings, again building up the wound bobbin until the newwindings contact with the periphery of cup 40, whereupon the range ofoscillation is again moved upwardly.

By the method of winding accomplished by the mechanism described notonly is there produced a tightly wound bobbin from which the windingswill not be readily displaced, but a-bobbin of a Vuniform diameter inits cylindrical portion is produced, as indicated by the dotted lines inFig. 1. 106

-, the

lil/'hat I claim and' desire to protect by Letters Patent is:

l. A winding mechanism including means Jfor rotatably mounting a spool,a rotary spindle mounted in parallelism with the axis of rotation of thespool, a guiding sleeve about the spindle, a carrier mounted on theguiding sleeve tor movement in the direction of the axis of the spindle,a yarn guide oscillatably mounted on the carrier, connections betweenthe spindle and yarn guide for oscillating the latter, and means formoving the carrier along the guiding sleeve.

2. ,fl vinding mechanism including means for rotatably mounting a spool,a rotary spindle mounted in parallelism with the axis ot rotation of thespool, a guiding sleeve about the spindle, a carrier mounted on theguidinnsleeve ttor movement in the direction of of the spindle, a yarnguide oscillatabiy mounted on the carrier, connections between thespindle and yarn guide for oscillating the latter, and means for movingthe carrier along the guiding sleeve, said last "i named means beingoperated automatically when the windings on the spool reachpredetermined positions.

3. A winding mechanism including means tor rotatably mounting a spool, arotary spindie including a worm mounted in parallelism with the axis ofrotation ot the spool, a fixed, outwardly threaded tube surrounding saidspindle, a carrier mounted for sliding movement along the tube, a yarnguide pivoted on the carrier, a cam for oscillating the yarn guide, aworm wheel meshing with said worm and connected to the cam to rotatesaid cam` a rotary member journalled on the carrier coaxially with saidtube and arranged to contact with windings on the spool, and an elementcarried by the rotary member and engaging the threads on the tubewhereby rotation of the rotary member by the windings on the spoolproduces a movement of the carrier along the tube.

el. A winding mechanism including means for rotatably mounting a spool,a rotary spindle mounted in parallelism with the axis of rotation ot thespool, a guiding sleeve about the spindle, carrier mounted on theguiding sleeve for movement in the direction of' the axis ot thespindlel` a yarn guide oscillatably mounted on the carrier, connectionsbetween the spindle and yarn guide for oscillating the latter, saidmeans including threads on the spindle engaged by a worm wheel on thecarrier, and means 'for moving the carrier along the guiding sleeve.

5. A. vinding mechanism including means tor rotatably mounting a spool.,a. rotary spindle mounted in parallelism with the axis oi" rotation otthe spool, a guiding sleeve about the spindle, a carrier mounted on theguiding sleeve for movement in the direction of the axis of the spindle,a yarn guide oscillatably mounted on the carrier, connections betweenthe spindle and yarn guide for oscillating the latter, and means formoving the carrier along the guiding sleeve, said means includingthreads on the sleeve engaged by a rotary follower on the carrier.

6. A winding mechanism including means for rotatably mounting al spool,a rotary spindle mounted in parallelism with the axis of rotation of thespool, a guiding sleeve about the spindle, a carrier mounted on theguiding sleeve for movement in the direction of the axis of the spindle,a yarn guide oscillatably mounted on thecarrier, connections between thespindle and yarn guide for oscillating the latter, said means includingthreads on the spindle eng-aged by a worm wheel on the car? rier, andmeans for moving the carrier along the guiding sleeve, said meansincluding threads on the sleeve engaged by a rotary tollower on thecarrier.

Y. A winding mechanism including means for rotatably mounting a spool, arotary spindle including a worm mounted in parallelism with the axis ofrotation of the spool, a carrier movable in the direction of said axis,a yarn guide oscillatably mounted on the carrier, connectionsl betweenthe spindle and yarn guide for oscillating the latter including a wormwheel engaging they worm, and means for moving the carrier in thedirection oft said axis.

In testimony ot whichl invention, I have hereunto set my hand, atPhiladelphia, Penna., on this 12th day of June, 1929.

ALFRED A. GRUNDY.

